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A Secured Algorithm Based On ECC and DWT with Watermarking

Sandeep kumar U, Y.Manjula, Dr.K.B.Shivakumar, Dr.M.Z.Kurian

Increase in the number of eavesdroppers during information exchange between the source and intended destination has indeed called for a more robust method for securing data transfer. Due to increasing use of images in industrial process, it is essential to protect the confidential image data from unauthorized access. In this ECC-DWT processor along with watermarking a secure image algorithm is proposed. The group of rational points on elliptic curves over finite fields can be used for public-key cryptography. The elliptic curve cryptography (ECC) has been identified and employed as an efficient and suitable scheme for public key cryptographic systems. Image is used for the steganography and a LSB (Least Significant Bit) algorithm is employed to encode the message inside the image and is applied during discrete wavelet transform (DWT) on coverage image. The proposed system not only hides large volume of data in an image, but also limits the perceivable distortion that might occur in an image while processing it, and provide a strong backbone for its security.